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6
FUNCTIONS
6.1 DB Interface Function
6.1.10 DB buffering function
6
- 19
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
SETTINGS AND
PROCEDURE TO
OPERATION
5
INSTALLATION AND
UNINSTALLATION
6
FUNCTIONS
7
MES INTERFACE
FUNCTION
CONFIGURATION TOOL
8
DB CONNECTION
SERVICE AND
SETTING TOOL
(b) When "Adding to the buffered data" is selected
The following shows the job processing when "Adding to the buffered data" is
selected.
Processing content
The data is sent to database in order of the trigger condition has been met.
1 When the data cannot be sent to the database, it is stored to DB buffer
after the detection of a timeout.
2 When the data is stored to DB buffer (the selected resend buffer), the data
is stored to DB buffer without checking the status of communication
recovery.
3 The content of DB buffer is resent after recovery.
4 The job data which is started up before the resend completion is added to
the buffered data, and resend.
5 The data which is started up after the resend completion is sent normally.
Figure 6.14 When "Adding to the buffered data" is selected for the job
After sending,
timeout detected
Stored to DB buffer
Communication recovery
Job startup Job startup
Stored to DB buffer
Send
Resend DB
buffer data
Resend start
1) 2)
3)
5)
DatabaseJob settings
Job1
Job3
DB buffer
Job10
Job1_DataJob1_Data
2)
1)
3)
Job2
Job2_Data
Job3_Data
Job2_Data
Job3_Data
Job10_Data
Job11
Job11_Data
4)
Job startup
Resend
completed
Stored to DB buffer
4)
Job startup
5)